Road American
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Which bitumen emulsion grades are recommended for surface dressing, tack coat, and waterproofing applications?
Surface dressing often uses rapid or controlled rapid setting grades that break quickly and bind aggregate under traffic. Tack coat typically uses cationic grades designed for uniform spray and strong adhesion between asphalt layers, often slow or medium setting depending on the spec. Waterproofing uses higher residue emulsions and frequently polymer modified formulations for flexibility and film integrity. Final selection must match aggregate chemistry, climate, and application equipment capability.
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